Disable webpack chunk coalescing (facebook#5030)

* Disable webpack chunk rollup

* Bump timeout

* Revert "Bump timeout"

This reverts commit 84632115d178b48e08eb75dc5e9a921ece6aa759.

Author: Timer

config/webpack.config.dev.js

@@ -121,7 +121,7 @@ module.exports = {
     // https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
     splitChunks: {
       chunks: 'all',
-      name: 'vendors',
+      name: false,
     },
     // Keep the runtime chunk seperated to enable long term caching
     // https://twitter.com/wSokra/status/969679223278505985

config/webpack.config.prod.js

@@ -159,7 +159,7 @@ module.exports = {
     // https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
     splitChunks: {
       chunks: 'all',
-      name: 'vendors',
+      name: false,
     },
     // Keep the runtime chunk seperated to enable long term caching
     // https://twitter.com/wSokra/status/969679223278505985